Carbon dioxide removal system for closed loop atmosphere revitalization,candidate sorbents screening and test results |
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| Institution: | 1. University of Alabama in Huntsville, United States;2. NASA Marshall Space Flight Center, United States;1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University, Beijing, 100084, PR China;2. Environmental Programs, The Pennsylvania State University, 777 West Harrisburg Pike, Middletown, PA17057, USA;3. Energy and Environment International Centre, School of Energy and Power Engineering, Beihang University, Beijing, 100191, PR China;1. State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, University of Petroleum-Beijing, Beijing 102249, China;2. College of Chemical Engineering, University of Petroleum-Beijing, Beijing 102249, China;1. USDA, ARS, Forage and Range Research, 690 N 1100 E, Logan, UT 84322, United States;2. USDA, ARS, Poisonous Plant Research, 1150 E 1400 N, Logan, UT 84341, United States;1. MOE Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;2. Research Center for Air Pollution and Health, Zhejiang University, Hangzhou 310058, China;3. Institute of Environmental Science, Zhejiang University, Hangzhou 310058, China;4. School of Engineering, Brown University, RI 02912, USA;5. Independent researcher, Espoo, Finland;1. Laboratory of Environmental Engineering, Department of Civil Engineering and Computer Science Engineering, University of Rome “Tor Vergata”, Via del Politecnico, 1, 00133 Rome, Italy;2. Key Laboratory of Environment Remediation and Ecological Health(Ministry of Education), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China;3. Research Center for Air Pollution and Health, Zhejiang University, Hangzhou 310058, China;4. Institute of Environmental Science, Zhejiang University, Hangzhou 310058, China;5. State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China;6. School of Engineering, Brown University, Providence, RI 02912, USA;1. Department of Chemistry, Royal Military Academy, Renaissancelaan, 30, B-1000 Brussels, Belgium;2. Department of Chemical Engineering, University of Liege, SartTilman, B-4000 Liege, Belgium |
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| Abstract: | Due to the difficulty and expense it costs to resupply manned-spacecraft habitats, a goal is to create a closed loop atmosphere revitalization system, in which precious commodities such as oxygen, carbon dioxide, and water are continuously recycled. Our aim is to test other sorbents for their capacity for future spacecraft missions, such as on the Orion spacecraft, or possibly lunar or Mars mission habitats to see if they would be better than the zeolite sorbents on the 4-bed molecular sieve. Some of the materials being tested are currently used for other industry applications. Studying these sorbents for their specific spacecraft application is different from that for applications on earth because in space, there are certain power, mass, and volume limitations that are not as critical on Earth. In manned-spaceflight missions, the sorbents are exposed to a much lower volume fraction of CO2 (0.6% volume CO2) than on Earth.LiLSX was tested for its CO2 capacity in an atmosphere like that of the ISS. Breakthrough tests were run to establish the capacities of these materials at a partial pressure of CO2 that is seen on the ISS. This paper discusses experimental results from benchmark materials, such as results previously obtained from tests on Grade 522, and the forementioned candidate materials for the Carbon Dioxide Removal Assembly (CDRA) system. |
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